diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 8c8616bf0..aa75b028b 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -3059,7 +3059,7 @@ bool Tokenizer::simplifySizeof()
         }
 
         // sizeof('x')
-        if (Token::Match(tok, "sizeof ( %any% )") && tok->strAt(2)[0] == '\'') {
+        if (Token::Match(tok, "sizeof ( %char% )")) {
             tok->deleteNext();
             tok->deleteThis();
             tok->deleteNext();